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Author Question: A first-year teacher asks you how she should model directionality and one-to-one word matching. You ... (Read 107 times) |
Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
People about to have surgery must tell their health care providers about all supplements they take.